Question: What was the method used to determine the population of Ferrara was 132009?
Paraphrase: How was Ferrara's population determined to be 132009?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q13362 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '132009')) . ?s pq:P459 ?value}